87 lines
1.7 KiB
C++
87 lines
1.7 KiB
C++
/*
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* \brief Kernel backend for asynchronous inter-process communication
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* \author Martin Stein
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* \date 2012-11-30
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*/
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/*
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* Copyright (C) 2012-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* core includes */
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#include <kernel/signal_receiver.h>
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using namespace Kernel;
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/************************
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** Signal_ack_handler **
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************************/
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Signal_ack_handler::~Signal_ack_handler()
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{
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if (_signal_context) { _signal_context->ack_handler(0); }
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}
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/********************
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** Signal_handler **
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********************/
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void Signal_handler::_cancel_waiting()
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{
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if (_receiver) { _receiver->_handler_cancelled(this); }
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}
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/***************************
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** Signal_context_killer **
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***************************/
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void Signal_context_killer::_cancel_waiting()
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{
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if (_context) { _context->_killer_cancelled(); }
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}
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/****************************
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** Signal_receiver_killer **
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****************************/
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void Signal_receiver_killer::_cancel_waiting()
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{
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if (_receiver) { _receiver->_killer_cancelled(); }
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}
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/********************
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** Signal_context **
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********************/
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void Signal_context::_deliverable()
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{
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if (_submits) { _receiver->_add_deliverable(this); }
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}
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Signal_context::~Signal_context() { _receiver->_context_killed(this); }
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Signal_context::Signal_context(Signal_receiver * const r, unsigned const imprint)
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:
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_deliver_fe(this),
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_contexts_fe(this),
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_receiver(r),
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_imprint(imprint),
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_submits(0),
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_ack(1),
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_kill(0),
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_killer(0),
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_ack_handler(&_default_ack_handler)
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{
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if (r->_add_context(this)) { throw Assign_to_receiver_failed(); }
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}
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